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ClinicalTrials.gov public records Last synced Jul 22, 2026, 6:36 PM EDT

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Showing 1–24 of 99 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Positive C-Diff Culture
Interventions
MucoMilk product
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Clostridium Difficile Diarrhea
Interventions
PBCLN-003, Placebo
Drug
Lead sponsor
Prolacta Bioscience
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Idaho Falls, Idaho
Conditions
Clostridioides Difficile Infection
Interventions
AZD5148, Placebo
Drug · Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
42
States / cities
Phoenix, Arizona • Chula Vista, California • Sacramento, California + 38 more
Conditions
Clostridium Difficile Infection Recurrence
Interventions
Bacillus velezensis DSM 33864, Placebo
Dietary Supplement
Lead sponsor
Novozymes A/S
Industry
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Royal Oak, Michigan
Conditions
Recurrent C. Difficile Associated Diarrhea
Interventions
Fecal Microbiota
Biological
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Houston, Texas
Conditions
Clostridium Difficile Infection
Interventions
Fecal microbiota
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Months and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Conditions
Recurrent Clostridium Difficile Infection
Interventions
RBX2660 (microbiota suspension)
Biological
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
13
States / cities
Phoenix, Arizona • Denver, Colorado • Jacksonville, Florida + 8 more
Conditions
Clostridium Difficile
Interventions
Serum-derived bovine immunoglobulin/protein isolate (SBI), Placebo
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
3
States / cities
Miami, Florida • Chicago, Illinois
Conditions
Clostridium Enterocolitis, Pseudomembranous Colitis, Antibiotic-Associated Colitis
Interventions
Not listed
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Houston, Texas
Conditions
C. Difficile
Interventions
Arm 1: Routine care, Arm 2: Preemptive C. difficile infection prevention bundle
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Phase 4 Interventional Results available

C. Difficile and Ursodiol

NCT02748616
Conditions
Diarrhea
Interventions
Ursodiol
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
New York, New York
Conditions
Clostridioides Difficile Infection
Interventions
Ridinilazole, Vancomycin
Drug
Lead sponsor
Summit Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
759 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
49
States / cities
Birmingham, Alabama • Sun City, Arizona • Los Angeles, California + 45 more
Conditions
Clostridioides Difficile Infection, Clostridium Difficile Infection, Clostridium Difficile Diarrhea, Clostridia Difficile Colitis
Interventions
Alanyl-glutamine
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 105 Years
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
2
States / cities
Charlottesville, Virginia • Roanoke, Virginia
Conditions
Recurrent Clostridium Difficile Infection, Clostridium Difficile Infection, CDI, C.Difficile Diarrhea, C. Diff Colitis, C.Difficile Colitis
Interventions
Vancomycin, Placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Conditions
Clostridium Difficile Infection
Interventions
Human fecal matter
Biological
Lead sponsor
Englewood Hospital and Medical Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
1
States / cities
Englewood, New Jersey
Conditions
Clostridium Difficile Infection
Interventions
Fecal Microbiota Transplant (FMT)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
7 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Clostridium Difficile Infection
Interventions
Oral Vancomycin
Drug
Lead sponsor
University of Nevada, Reno
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Reno, Nevada
Completed Phase 4 Interventional Results available

Impact of Oral Antibiotic Treatment on C. Difficile

NCT02057198
Conditions
C. Difficile, Diarrhea, Enterocolitis
Interventions
Fidaxomicin, Metronidazole, Vancomycin
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Ventilator Associated Pneumonia, Infections, C-Difficile, Antibiotic-associated Diarrhea, Diarrhea
Interventions
L. rhamnosus GG - Probiotic, Placebo - Microcrystalline Cellulose
Drug
Lead sponsor
McMaster University
Other
Eligibility
18 Years and older
Enrollment
2,650 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
2
States / cities
Rochester, Minnesota • St Louis, Missouri
Conditions
Clostridium Difficile Infection
Interventions
RBX2660, Standard of Care Antibiotics
Biological · Drug
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
28
States / cities
Phoenix, Arizona • North Little Rock, Arkansas • Sacramento, California + 25 more
Conditions
Inflammatory Bowel Diseases, Ulcerative Colitis, Crohn Disease, C. Diff. Infections
Interventions
Bezlotoxumab
Biological
Lead sponsor
David Binion, MD
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Clostridium Difficile, Clostridium Difficile Infections, Clostridium Difficile Infection Recurrence, Clostridioides Difficile Infection, Clostridioides Difficile Infection Recurrence, CDI, C. Diff Infection, Recurrent Clostridium Difficile Infection, C.Difficile Diarrhea, Diarrhea Infectious
Interventions
VE303, Placebo
Biological
Lead sponsor
Vedanta Biosciences, Inc.
Industry
Eligibility
12 Years and older
Enrollment
852 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
84
States / cities
Huntsville, Alabama • Chandler, Arizona • Phoenix, Arizona + 73 more
Conditions
Inflammatory Bowel Disease (IBD), Clostridioides Difficile Infection
Interventions
Xylitol
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Clostridium Difficile Infection, Infection, Communicable Diseases
Interventions
RBX2660
Drug
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
793 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
46
States / cities
Phoenix, Arizona • North Little Rock, Arkansas • Oxnard, California + 43 more